Ecosystems

Question 1

What are Food chains?

Answer 1

Show what has been eaten by what

Question 2

What is the producer?

Answer 2

Something that makes their own food from sun energy, like green plants or algae

Question 3

First three types of consumers?

Answer 3

Primary consumer, secondary consumer, tertiary consumer

Question 4

What is a quadrat used to measure for?

Answer 4

• distribution
  -compare sample areas

Question 5

Method of using a quadrat:

Answer 5

• use 1m^2 quadrat in the sample area
  -count how many organisms appear in that quadrat
• repeat this around the first sample area
• work out the mean no. of organisms in the sample area
  -do this in another sample area
  -compare

Question 6

How to find the mean number of organisms in a sample area:

Answer 6

Total no. Of organisms / the no. Of quadrats